<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="css/common.css">
    <script src="js/jquery.js"></script>
    <!--<script src="js/index.js"></script>-->
    <style>
        div{
            float: left;
            margin-right: 10px;
            margin-bottom: 10px;
        }
    </style>
</head>
<body>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
<div style="width: 300px;height: 300px;background: black"></div>
</body>
</html>